Runaway Electron Suppression by ECRH and RMP in KSTAR  

作　　者：A. C. ENGLAND Z. Y. CHEN D. C. SEO J. CHUNG Y. S. LEEV J. W. YOO W. C. KIM Y. S. BAE Y. M. JEONV J. G. KWAK M. KWON KSTAR Team 

机构地区：[1]National Fusion Research Institute,Daejeon, Republic of Korea [2]Huazhong University of Science and Technology [3]National Fusion Research Institute,Daejeon, Republic of Korea,

出　　处：《Plasma Science and Technology》2013年第2期119-122,共4页等离子体科学和技术（英文版）

摘　　要：We have observed reduction of the runaway electron synchrotron radiation, hard X-ray （HXR） intensity, and HXR energy after applying 110 GHz 2nd harmonic electron cyclotron resonant heating （ECRH） during runaway electron （RE） discharges at low density with startup runaway electrons. However, we did not see a significant reduction of X-rays from 170 GHz 2nd harmonic ECRH at a higher field. A recently installed IR TV camera was used to observe the forward cone of synchrotron radiation from high energy REs in KSTAR. We have observed changes to the synchrotron images and reduction of the HXR by application of resonant magnetic perturbations （RMP） from in-vessel control coils （IVCC） installed inside KSTAR in the n----1 configuration.We have observed reduction of the runaway electron synchrotron radiation, hard X-ray （HXR） intensity, and HXR energy after applying 110 GHz 2nd harmonic electron cyclotron resonant heating （ECRH） during runaway electron （RE） discharges at low density with startup runaway electrons. However, we did not see a significant reduction of X-rays from 170 GHz 2nd harmonic ECRH at a higher field. A recently installed IR TV camera was used to observe the forward cone of synchrotron radiation from high energy REs in KSTAR. We have observed changes to the synchrotron images and reduction of the HXR by application of resonant magnetic perturbations （RMP） from in-vessel control coils （IVCC） installed inside KSTAR in the n----1 configuration.

关 键 词：TOKAMAK runaway electron suppression X-RAY synchrotron radiation 

分 类 号：TL631[核科学技术—核技术及应用]